2784985 has 16 divisors (see below), whose sum is σ = 3902976. Its totient is φ = 1867968.

The previous prime is 2784979. The next prime is 2784997. The reversal of 2784985 is 5894872.

It is not a de Polignac number, because 2784985 - 2⁷ = 2784857 is a prime.

It is a super-2 number, since 2×2784985² = 15512282900450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799 + ... + 2491.

It is an arithmetic number, because the mean of its divisors is an integer number (243936).

2^2784985 is an apocalyptic number.

It is an amenable number.

2784985 is a deficient number, since it is larger than the sum of its proper divisors (1117991).

2784985 is a wasteful number, since it uses less digits than its factorization.

2784985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752.

The product of its digits is 161280, while the sum is 43.

The square root of 2784985 is about 1668.8274326604. The cubic root of 2784985 is about 140.6935820207.

The spelling of 2784985 in words is "two million, seven hundred eighty-four thousand, nine hundred eighty-five".